From muscles to action movies, Dwayne “the Rock” Johnson does everything big. Now he has a very large bruise — or “boo boo,” as he calls it — to match. Johnson shared a photo of his black-and-blue ...

If you have swollen, painful knees that are tender to the touch, you may have knee bursitis. Knee bursitis is very common among people ages 40 to 60. Even so, many adults don’t know how to recognize ...

Bursae are fluid-filled sacs in areas of the body that facilitate movement. The knee has several bursae and conditions such as bursitis can impact the bursa in the knee. The body’s musculoskeletal ...